public void check_order_with_exception_cases(String param)
{
String[] commandSplit = param.Split(" ");
ValidateParameters validateParameters = new ValidateParameters();
Assert.Throws <Exception>(() => validateParameters.checkOrder(commandSplit));
}
public void check_order_without_exception_cases(String param)
{
String[] commandSplit = param.Split(" ");
ValidateParameters validateParameters = new ValidateParameters();
var exception = Record.Exception(() => validateParameters.checkOrder(commandSplit));
Assert.Null(exception);
}
public void ValidateParameters_ShoulReturnErroWhenInitialValueIsLessThanZero()
{
ValidateParameters validateParameters = new ValidateParameters();
decimal initialValue = -1;
int months = 0;
var result = validateParameters.Validate(initialValue, months);
Assert.Equal("[ERRO] O Valor inicial informado deve ser um número decimal maior que zero (0).", result);
}
public void ValidateParameters_ShoulNotReturnErroWhenInitialValueAndMonthsAreGreaterThanZero()
{
ValidateParameters validateParameters = new ValidateParameters();
decimal initialValue = 1;
int months = 1;
var result = validateParameters.Validate(initialValue, months);
Assert.Equal(string.Empty, result);
}
public void ValidateParameters_ShoulReturnErroWhenMonthsIsZero()
{
ValidateParameters validateParameters = new ValidateParameters();
decimal initialValue = 1;
int months = 0;
var result = validateParameters.Validate(initialValue, months);
Assert.Equal("[ERRO] O Valor informado no parâmetro 'meses' deve ser um número inteiro maior que zero (0).", result);
}
public string CalculateCompoundInterest(decimal initialValue, double interestRate, int months)
{
var validateInterestRate = CheckIfInterestRateHasNegativeValue(interestRate);
if (!string.IsNullOrEmpty(validateInterestRate))
{
return(validateInterestRate);
}
var validationResult = new ValidateParameters().Validate(initialValue, months);
if (!string.IsNullOrEmpty(validationResult))
{
return(validationResult);
}
return((Math.Truncate(100 * (initialValue * (decimal)Math.Pow((1 + interestRate), (double)months))) / 100).ToString("#0.00"));;
}
